The Vevor CO2 monitoring controller helps manage indoor carbon dioxide levels with dual-channel NDIR sensing for stable, accurate readings. It supports both plant and human modes, allowing automatic CO2 supply or ventilation based on the environment. Smart day and night light detection helps automate operation for more efficient control. A large LCD displays CO2 concentration, temperature, humidity, and operating status for easy monitoring. Designed for greenhouses, classrooms, laboratories, and home use, it simplifies everyday air quality control.